baber/WOPTO huggingface dataset:
Patent GB-2034917-A (GB)
Title: Wave plate retarders and methods of making such retarders
IPC: G11B7/1365
Filed: 1979-09-10
Abstract: A wave plate retarder 10 comprises two or more birefringent high molecular weight films 11 and 12 arranged with a predetermined angle between their respective optical axes to establish a desired phase difference during transmission through the films 11 and 12 of components of light polarized along orthogonal axes. The predetermined angle may be selected to provide a phase difference of 1 DIVIDED 4 or 1 DIVIDED 2 wavelength of light thus to produce a composite wave plate retarder which functions as a 1 DIVIDED 4 or 1 DIVIDED 2 wave plate regardless of the phase difference of components of light produced by transmission through a single film 11 or 12. As shown, polypropylene films 11, 12 are protected by glass or resin plates 13, 14. Figs. 3, 4 (not shown) show apparatus for measuring the phase difference introduced by single and paired plates. Fig. 1 (not shown) shows the retarder used in a video disc player. <IMAGE>
Patent GB-2040650-A (GB)
Title: Channel induction furnace
IPC: H05B6/20
Filed: 1980-01-09
Abstract: A channel of a channel induction furnace is characterised in that it is lined by a mixture consisting almost entirely of SiO2 with a little pure graphite and a little Na2B4O7, the mixture being compacted whilst in a dry state.
Patent GB-2042488-A (GB)
Title: Electrical conductor and method of making the same
IPC: H01L31/07
Filed: 1980-01-31
Abstract: An electrical conductor is formed by depositing on a substrate a film of solid amorphous conductor material including amorphous polymeric sulfur nitride, (SN)x. The deposition is preferably by plasma or glow discharge decomposition of hydrogen sulfide, H2S, in a partial vacuum having an atmosphere containing ammonia, NH3, or nitrogen, N2.
Patent GB-2048251-A (GB)
Title: Sucrose Benzoate Bittering Agents
IPC: A23L27/20
Filed: 1980-03-17
Abstract: Orally ingestible products, especially liquid orally ingestable products contain, as bittering agents, one or more bitter di-, tri- or tetra- benzoates of sucrose, especially sucrose 6,3',6'-tribenzoate or sucrose 2,6,6'-tribenzoate. The bittering agents, which are themselves new compounds, may be used alone or in an admixture with other sucrose di-, tri- or tetra-benzoates and the invention also provides a bittering composition comprising two or more sucrose di-, tri- or tetra-benzoates, at least one of which is a bitter sucrose di-, tri- or tetra-benzoate.
Patent GB-2045769-A (GB)
Title: Thermoplastic foamable blends
IPC: C08J9/10
Filed: 1980-03-18
Abstract: An injection moldable foamable blend comprising:     (i) a thermoplastic organic polymer;   (ii) a dihydrooxadiazinone having the formula   <IMAGE> wherein n is 1 or 2; R is a monovalent radical when n is 1, and a divalent radical when n is 2, and is C(1-8) alkyl, haloalkyl, alkylene, or haloalkylene, or C(6-30) aryl, haloaryl, arylene, or haloarylene; R<1> and R<2> are independently hydrogen, C(1-8) alkyl, C(6-30) aryl, alkoxy, aryloxy, or C(1-8) alkylene or C(6-30) arylene substituted by a further group of the formula   <IMAGE> and, (iii) an amide derivative of azodicarboxylic acid having the formula    <IMAGE> wherein R<3> and R<4> are independently hydrogen or C(1-10) alkyl radicals. The use of two foaming agents results in foamed structures whose structure is well defined and uniform, which exhibit lower density, less stressing and warpage, than structures prepared using a single foaming agent.
Patent GB-2050089-A (GB)
Title: Traction equipment
IPC: B60L11/18
Filed: 1980-03-28
Abstract: Traction equipment comprises a vehicle F with an electric a.c. motor M and with an accumulator battery B for feeding the motor via an inverter VR. The vehicle is provided with means, such as a switch SW and a plug AM, for connecting the a.c. side of the inverter to a stationary a.c. voltage source TR for charging the battery via the inverter. In addition, the vehicle has means such as a charging regulator CR, a comparison circuit JF, a current regulator IR, amplifiers FR-FT, delay devices DR-DT and a potentiometer P, for controlling the inverter and thus the charging current while charging the battery. Members FR-FT, DR-DT are responsive to voltages URUSUT of the source TR to control the phase position of the inverter voltage relative to the voltage of source TR. Potentiometer P is adjusted to minimize the reactive power between the inverter and source TR while charging the battery. A time programme may control the charge current instead of sensing the battery voltage by potentiometer SD. <IMAGE>
Patent GB-2047554-A (GB)
Title: Flow mixing device
IPC: A01M7/00
Filed: 1980-04-23
Abstract: A device for mixing chemical products with running water. It is characterized in that the tubular pipes for the supply of running water are situated in a different plane from the inlet plane of the mixing chamber disintegration zone.
Patent GB-2049250-A (GB)
Title: Controlling the movement of objects, such as vehicles, along a common path or track
IPC: B61L23/34
Filed: 1980-04-29
Abstract: In the automatic travelling control of objects such as vehicles (1, 2 and 3) moving along a common path or track (4), control signals are transmitted in a direction contrary to the direction of motion, in a transmission medium (4) extending linearly along the path or track. These signals are received 8 by each vehicle (1, 2, 3...), and their further transmission is passively suppressed 10. 0n each vehicle the received signal is regenerated, and transmitted 9 to the following vehicle (2, 3). The speed of a following vehicle (2, 3,) is controlled by the regenerated signal from the object (1, 2) directly in front thereof and in the event of breakdown of a vehicle the regeneration process is stopped and in the absence of a received signal the following vehicles are automatically braked to a halt. <IMAGE>
Patent GB-2077504-A (GB)
Title: Vibration switch
IPC: H01H35/14
Filed: 1980-06-03
Abstract: Insulating sleeve 10 mounts elongate terminals 16, 17, 18 and 19 parallel to one another in an array around a space 20 occupied by one or more electrically-conducting bodies in the form of balls or rollers 22. There is a different spacing between each adjacent pair of the terminals 16, 18; 18, 17; 17, 19 and 19, 16. Electric continuity through the switch is broken when the balls or rollers 22 are shaken simultaneously from the terminals supporting them from below, and the sensitivity of the switch is varied according to which of the terminal pairs is supporting the balls or rollers 22, because of the different spacings thereof. <IMAGE>
Patent GB-2060201-A (GB)
Title: Stepper motor control circuit
IPC: G05B19/35
Filed: 1980-09-12
Abstract: A stepper motor is controlled in acceleration, free running and deceleration to ensure that stalling due to too high a slip rate is avoided. The control includes an integrator (10), a first error amplifier (11) comparing the integrator output with a feedback signal from a shaft position transducer (12), a second error amplifier (15) comparing the transducer output with a demand signal, a low wins selector (16) which passes to the integrator the output of whichever one of the first and second error amplifier is producing the lowest absolute value output, integrator reset means (17) sensitive to the output of the first error amplifier and acting to limit the slew rate of the integrator output, a pulse generator (20) driven by the selector (16) and a motor drive circuit (21, 22, 23) pulsing the motor coils. <IMAGE>
Patent GB-2062962-A (GB)
Title: Production of insulating layers
IPC: H01L31/04
Filed: 1980-11-03
Abstract: An undoped insulating layer (2) is produced on a semiconductor body (1) by applying a solution to a rotating semiconductor body (1). The solution may comprises tetraethoxysilane, methanol and nitric acid to produce a layer of silicon dioxide on the body. The layer (2) may overlap onto the edges of the body (1) so that it can be used as a diffusion mask for the formation of a doped layer (4). The insulating layer may be removed before applying contacts to form a solar cell. <IMAGE>
Patent GB-2064959-A (GB)
Title: Pharmaceutical anti-tussive composition comprising ethyl- morphine, aconite tincture and glyceroguaiacol
IPC: A61K36/00
Filed: 1980-12-11
Abstract: An oral pharmaceutical composition for treating cough contains:     a) 4.5 to 8.5 parts by weight of ethylmorphine or a salt thereof,   b) 10 to 70 parts by weight of aconite tincture, and   c) 10 to 30 parts by weight of glyceroguiacol.   The said composition may further contain a cellulose ether thickening agent and chlorpheniramine or a salt thereof.
Patent GB-806620-A (GB)
Abstract: 806,620. Supply fittings for baths etc.; lavatory basins. GOSLETT, W. M. Oct. 9, 1957 [July 18, 1956], No. 22270/56. Class 26. A mixer supply fitting is accommodated partly within a well 8 formed in the surround 2 of a wash-basin 1, bath or the like and comprises a cover-plate 17 for the well 8 a discharge outlet 16 having valves 11, 12 for the water supplied and control capstans 11a, 12a therefor. A union 15 is connected to the valves 11, 12 to feed the outlet 16 with water through an aperture 20 in the plate 17. The member 16 with an annular flange 25 and the union 15 register with the aperture 20 and are retained in engagement with the plate 17 by means of a bolt 22 bearing against a washer 30 and engaging in a hole 23 in a projection 24, washers 21 and 27 providing packing means. The member 16 has a stud 28 which engages in a hole 29 in the plate 17. The well 8 has other apertures for supply pipes 13, 14 for hot and cold water threaded to receive nuts, e.g. 14a, serving to secure the fitting. The basin 1 has depressions in its shelf or surround 2 for soap and has an overflow outlet 7.
Patent GB-2071985-A (GB)
Title: A feeder for animals
IPC: A01K1/10
Filed: 1981-02-10
Abstract: A feeder for animals comprises an elongated cavity for receiving the fodder. The cavity is at least partly defined by a plastics sheet material having apertures 20 therein through which the animals can feed. The ends of the cavity are closed and at least one is openable for the insertion of fodder or the removal of residual fodder. In the preferred construction, the cavity is defined by a sheet of plastics material folded in two. <IMAGE>
Patent GB-2096331-A (GB)
Title: Signal processors
IPC: G01R27/28
Filed: 1981-04-02
Abstract: A test signal generator for multi- frequency excitation of a system under test is arranged to permit each of a multiplicity of discrete frequency components to be included or omitted as desired (for example, to avoid excitation of the system under test at a resonant frequency within the frequency band of interest) during preselection of the spectrum of the signal. The signal is then generated as an aggregate of the selected components and so as to have a low peak factor. <IMAGE>
Patent GB-2075924-A (GB)
Title: Buoyancy means
IPC: B63B35/74
Filed: 1981-04-09
Abstract: A buoyancy means for supporting an animal body in a liquid medium, the buoyancy means comprising at least two floats joined to one another and spaced apart by at least one connecting member.
Patent GB-2081406-A (GB)
Title: Pipes and pipe joints
IPC: F16L47/08
Filed: 1981-04-13
Abstract: A joint between first and second pipes 1, 2 of plastics material comprising a spigot end 3 of circular cross- section on the pipe 1 inserted into a socket end 4 of circular cross-section of the pipe 2 and a resilient sealing ring 10 carried in a circumferential groove 9 in the spigot end 3. The groove 9 is located in a first portion 7 of the spigot end 3 which has an external surface 8 which is convexly arcuately curved in the axial direction of the spigot end 3. The spigot end 3 also has second and third portions 5 and 6 which are joined integrally with the first portion 7 and are disposed on axially opposite sides of the latter. Each of the spigot end portions 5 and 6 has a diameter which reduces in the direction away from the portion 7, and the maximum diameter D1 of the portion 7 is less than the internal diameter D2 of the socket end 4, in the region of the latter which is engaged by the sealing ring 10, by an amount not exceeding one tenth of the maximum thickness d of the sealing ring 10 measured in the radial direction of the latter when in its relaxed state. <IMAGE>
Patent GB-2073917-A (GB)
Title: Electronic timepiece
IPC: G04C10/00
Filed: 1981-04-14
Abstract: An electronic timepiece suitable for use with different types of batteries having different voltages, and including a stepping motor 6, an oscillator 1, a frequency divider 2 and a motor control circuit 5, comprises a battery voltage detector 8 and a pulse shaper circuit 9 capable of producing pulses of different durations. The voltage detector circuit 8 controls the pulse shaper circuit 9 to cause it to supply the motor control circuit with pulses whose duration depends upon the detected battery voltage, whereby the drive pulse power will be substantially the same irrespective of the type and voltage of the battery fitted. In another embodiment trains of short pulses are used instead of single pulses and the duty cycle of the short pulses is varied. <IMAGE>
Patent GB-2101655-A (GB)
Title: Device for locating control elements in well bores
Inventor: MORRISON DOUGLAS
IPC: E21B17/10
Filed: 1981-06-02
Abstract: A locating device 11 comprises a pipe protector for protecting a flow pipe in a casing string in the bore of a well and locating a control element relative to the flow pipe. A body 12 of metal is hinged at 14 and is secured in place about the flow pipe by wedge 18 in slot 17. A resilient insert 23 of polymer compound is positioned in recess 22, and has at least one recess 25 for locating a control element such as an armoured coaxial cable. The insert 23 may be bonded or loosely positioned in the recess 22, but firmly held when the body 12 is tightened around the flow pipe. When the polymer deteriorates or is mechanically damaged, the insert can be removed and replaced without loss of the body 12. <IMAGE>
Patent GB-2079447-A (GB)
Title: Cooking and heating stoves
IPC: F24B5/08
Filed: 1981-06-12
Abstract: A solid fuel stove adapted for use as a continuous combustion or heating stove, comprises a combustion chamber (11), a front charging opening to the combustion chamber, an ashbox (12) located below the combustion chamber, a grate (13) arranged in a lower region of the combustion chamber, an inlet arranged to supply combustion air to the combustion chamber through the grate, an upper outlet (19) for exhaust gases arranged in an upper region of the combustion chamber, the upper outlet (19) being closable, and an additional, lower outlet (31) for exhaust gases arranged in a side wall of the combustion chamber in a region of the combustion chamber located directly above the grate. <IMAGE>
Patent GB-2092562-A (GB)
Title: Optimization of crop yields with metal proteinates
IPC: C05D9/02
Filed: 1981-12-22
Abstract: A method of optimizing crop yields which comprises assaying immature plant tissues for essential trace minerals, comparing the results of the tissue assay along with known trace mineral parameters for that plant species to determine the most limiting to the least limiting trace mineral in terms of mineral deficiency or imbalance in said plant tissues and applying to the immature plant an effective amount of at least the most limiting trace mineral in the form of a bioavailable amino acid chelate.
Patent GB-2097105-A (GB)
Title: Tumble drier
IPC: D06F58/02
Filed: 1982-02-04
Abstract: Door (5) incorporates first and second walls (6, 7) having a transverse partition (14) extending therebetween, and a foil (20) is sealingly secured to said partition (14) to define an air passage between the first wall and the foil (20). Air 4 passes from the drum through perforations 10 into the air passage, from which it passes to duct 18, either to be exhausted or to be recirculated. Fluff from the drum is trapped in air filter 13. <IMAGE>
Patent GB-2101438-A (GB)
Title: Electric circuit arrangement for the switching-on and switching-off of a load
Inventor: JEENICKE EDMUND
IPC: H03K17/615
Filed: 1982-03-29
Abstract: A circuit arrangement includes an output transistor for the switching-on and switching-off of a load (6) e.g. the primary winding (7) of an ignition coil (8) forming part of an internal combustion engine. The emitter- collector path of the output transistor (5) and the load (6) form a series combination intended for connection to a d.c. source (1). The base-emitter paths of one or a plurality of driver transistors (11, 12) are connected in series with the base-emitter path of the output transistor (5), and a by- pass connection (22) branches from the input (13) of the series combination comprising the base- emitter paths and leads to the connection between the load (6) and the collector of the output transistor (5). The by-pass connection (22) includes at least one forward-biassed by-pass diode (24 or 25) and ensures that the output transistor (5) is in an operating range of high current amplification and low saturation. <IMAGE>
Patent GB-2120533-A (GB)
Title: Improvements relating to machines for peeling vegetables
Inventor: BROOKE ARNOLD
IPC: A47J17/18
Filed: 1982-05-11
Abstract: A peeling device for use in a vegetable peeling machine has an abrasive element in the form of a disc (6) with an undulating abrasive peeling surface, which is mounted detachably on a steel backing plate (1). The disc is formed as a casting of a mixture of crushed flint aggregate and a cement and has three projections (9, 10, 11) which are received respectively in elliptical openings (3, 4, 5) in the backing plate. When the plate rotates the abrasive element is held firmly in a locked position on the plate. <IMAGE>
Patent GB-2101164-A (GB)
Title: A gripper bar for a weft-inserting mechanism in a loom
Inventor: DEWISPELAERE ANDRE
IPC: D03D47/12
Filed: 1982-06-08
Abstract: To protect the weft-yarns, a rim 4 extends from a rigid inserter in the lengthwise direction thereof on the side the weft-yarn comes along. This projecting rim 4 is preferably made from plastic material reinforced with fibers such as glass fibers, carbon fibers or aramide fibers, and forms a single unit with a jacket 3 surrounding with the exception of the teeth, a core 1, 2 which is comprised of a U-shaped section 1 and a rack 2 secured inside said section. <IMAGE>
Patent GB-2106019-A (GB)
Title: An abrasive disc
Inventor: KUBSH LEROY M
IPC: B24D7/16
Filed: 1982-06-09
Abstract: An abrasive disc for a disc grinding machine comprises a bonded abrasive body (12) having a substantially flat mounting surface (14), a plurality of anchoring means (16) each including a cup-shaped metallic washer (20) having a flat top surface portion (22) substantially flush with the flat mounting face, and an annular outwardly inclined skirt portion (24) embedded within the abrasive body. Each washer includes a first plurality of apertures (30) in the skirt portion whereby integral portions of the bonded abrasive body extending therethrough lock the washer in position within the bonded abrasive. Each washer further includes a second plurality of apertures (32) in the flat top surface portion for decreasing the metallic surface area of the washer bottom surfaces. Bonded abrasive fills the second apertures and defines portions (34) of the mounting surface (14) of the abrasive body (12). <IMAGE>
Patent GB-2124290-A (GB)
Title: Apparatus for securing flexible sheet material
Inventor: BROADHURST RAYMOND
IPC: F16B5/06
Filed: 1982-07-22
Abstract: Apparatus for securing a sheet (20) of flexible material comprises a channel (10) having a base (11) and walls (12 and 13) which are spaced apart less than the width of a securing member (15) except at the level of recesses (16 and 17). The member (15) is a force fit in the recesses and secures the sheet (20). <IMAGE>
Patent GB-2124835-A (GB)
Title: Current printed circuit boards
Inventor: WERY M JEAN CLAUDE
IPC: H05K3/30
Filed: 1982-08-03
Abstract: An apparatus in the form of a multilayered pad (P1,P2) is provided which has an adhesive layer (32) over at least part of one face which is responsive to heat so that the pad can be bonded by heat to the surface of a printed circuit board. The other face of the pad includes a layer of stainless steel to which nickel wire can be stitched, or welded. A method according to the invention includes cutting a sheet (46) of pads into individual pads (P1,P2), placing a plurality of pads, adhesive side down, on the surface of a printed circuit board, heating the pads (P1,P2) to bond them to the board, and stitching (welding) wire (24) to a succession of pads (p1,P2) to complete a series of new connections. Some pads (P1) include plated-through-holes (40) enabling connections to be completed from the pads to existing circuitry on the boards and to components mounted in the holes by the use of flow soldering techniques.
Patent GB-2108409-A (GB)
Title: Separating a medium into components of different particle masses
Inventor: RYYNANEN SEPPO ILMARI
IPC: B04B5/10
Filed: 1982-10-25
Abstract: Separation of a medium into components having different particle masses is effected by means of centrifugal force in turbulence free flow operated equipment, e.g. cyclones. The invention serves to reduce the friction resistance between a vortex and a chamber by removing part of a chamber wall or an entire chamber wall from between parallel vortexes. The supporting action of a chamber wall is compensated for by having parallel, oppositely rotating vortexes collide with each other at an angle of 0 to 90 DEG . Separators can be built up into large systems in which parallel vortexes are disposed e.g. in circular configuration or in a regular square net. Having the vortexes collide with each other further acts to develop a separating power intensifying radial oscillating motion in vortexes.
Patent GB-2129628-A (GB)
Title: Terminal block
Inventor: DOOLEY ANDREW PHILLIP CHARLES
IPC: H01R4/24
Filed: 1982-11-04
Abstract: A terminal block for connecting exchange side telephone cables to drop wires, and comprises an insulating body 11 and a plurality of spaced pairs of one-piece terminals 20 which include bifurcated solderless first connection points 21 to receive the drop wires and upstanding earth connection points 27 as well as downwardly extending second bifurcated solderless connectors 24 which receive the exchange side cable wires. Three pin lightning protectors are inserted to engage with third connection points 26 on the terminals and with an earthing connection point 30. <IMAGE>
Patent GB-2115638-A (GB)
Title: Colour television coding and decoding
Inventor: DREWERY JOHN OLIVER
IPC: H04N11/06
Filed: 1983-01-21
Abstract: A colour coder (Figure 6) transmits a PAL or NTSC signal comprising a luminance signal including alias components (2fsc sampler S12) and a one-dimensional chrominance signal C consisting of U+V and U-V on alternate lines, modulated on to the subcarrier fsc (sampler S22). The phasing of the Y and C signals is such that effectively they are transmitted in phase quadrature; although for transmission comb filters (F12, F22) restore the conventional UV quadrature phasing and the decoder (Figure 7) has filters (F11, F21) restoring quadrature phasing of luminance and chrominance prior to demodulation (samplers S11, S21), so that chrominance and luminance crosstalk is avoided. In order to compensate self impairments (U/V crosstalk, reduction of vertical chrominance resolution, luminance aliasing and reduction of diagonal luminance resolution due to luminance anti-aliasing pre- and post- filters (F01, F02)), luminance and chrominance compensation signals representing the lost information are extracted at the coder and transmitted separately (e.g. via a combining and separating system (S52, S62, F52, F62, F51, F61, S51, S61) analogous to the basic coder/decoder combination) and added at the decoder. The compensation signal may also be arranged to carry additional high- frequency chrominance components. <IMAGE>